Forgot your Mac Password? Reset it Without Losing Data nor Install Disc (OS X 10.5 and older)
Have a newer OS? For those running 10.6 or above, I have created a newer (simpler) video guide - • Reset Any Mac OS X Password without Admini...
Process 1 -
mount -uw /
launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServices.plist
ls /Users
dscl . -passwd /Users/username password
reboot
Process 2 -
mount -uw /
rm /var/db/.AppleSetupDone
shutdown -h now
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